Component Testing Procedures
!
WARNING
To avoid risk of electrical shock, personal injury or death, disconnect power to oven and discharge capacitor
before servicing, unless testing requires power.
16500008
January 2009
Replaces 16027357
©2009 ACP Inc.
4
Illustration
Component
Test
Results
Pin #1
Pin #1
P1
P2
A
B
C
D
E
F
G
L
H
Controller board
P
2
1
10
P1
1
1
0
P1 connector used
for touch panel
ribbon
All Models
Line voltage to control board
P2 connector
Pin 1—Pin 3 ...............................................
Output drive voltage to triac
Triac terminals .............................................
Gate—T1 ...................................................
208 VAC line voltage
Fan relay (controls blower motor, antenna
motor(s), and oven light)
Control board ...............................................
Terminals C—D .........................................
Line voltage sensing relay (automatically
switches for 208 or 230 VAC operation)
Control board ...............................................
Terminals F—G .........................................
230 VAC line voltage
Fan relay (controls blower motor, antenna
motor(s), and oven light)
Control board ...............................................
Terminals C—E .........................................
Line voltage sensing relay (automatically
switches for 208 or 230 VAC operation)
Control board ...............................................
Terminals F—H .........................................
Line voltage (All Conditions)
0 VAC (Idle and Standby)
0.9 VAC (Cook)
Line voltage (Idle)
0 VAC (Standby and Cook)
Line voltage (Idle)
0 volts (Standby and Cook)
Line voltage (Idle)
0 VAC (Standby and Cook)
Line voltage (Idle)
0 volts (Standby and Cook)
Error Code Table
Error Code
Corrective Action
F1
Replace HV/LV Board
F2
Replace HV/LV Board
F3
Replace HV/LV Board
F4
Replace HV/LV Board
F5
Replace Touch Panel
Usage Test
The Usage Test is used to access Magnetron Hours, Magnetron Cycles and Door Cycles. Use the following
procedure to access the data:
1. Open door.
2. Press and hold pad
3
for five (5) seconds.
NOTE:
After five (5) seconds, SErv illuminates in the display.
3. Press pad
1
for Magnetron Hours.
4. Press pad
2
for Magnetron Cycles.
5. Press pad
3
for Door Cycles.
Conditions
Initial Power Up Condition:
Apply power to oven with door closed.
Idle Condition:
Oven plugged in, display blank (no other components operating).
Standby Condition:
Open oven door, light and motors operate.
Cook Condition:
Food load in oven, cook cycle initiated.